{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Disease", "Chemical"], "input": "Prolonged administration of female sex hormones is a possible cause of chorea in women who have not previously had chorea or rheumatic fever ."}
{"Disease": ["chorea", "rheumatic fever"], "Chemical": []}